JP2002271863A - On-vehicle phone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle phone that can transmit/receive required information and interrupt a speech without giving an unpleasant feeling to the opposite party when an emergency vehicle approaches its own vehicle and the driver pulls the vehicle aside during the speech. SOLUTION: An emergency vehicle alarm signal detection means 130 detects an alarm (radio wave or sound) from an emergency vehicle during speech to discriminate the approach of the emergency vehicle. When a speech state monitor means 140 detects a speech transmission state, an on-vehicle phone communication control means 8 allows a speaker 1220 to sound a 1st message (e.g. a warning tone or the like) stored in an emergency message storage means 150 into the interior of the vehicle, thereby informing the talker about the approach of the emergency vehicle to the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for driving a vehicle, and more particularly to a vehicle-mounted telephone device for alerting a driver of an approaching emergency vehicle while driving a vehicle.

[0002]

2. Description of the Related Art Conventionally, an emergency vehicle such as a fire engine or a police vehicle travels while emitting an alarm sound such as a siren in the event of an emergency, and other vehicles in the traveling direction receive the above-mentioned alarm sound. Measures are taken to give priority to traveling of emergency vehicles, such as stopping. Conventional techniques for performing such safety measures include a device and a method for detecting a radio wave emitted from an emergency vehicle (Japanese Patent Application Laid-Open Nos. 9-267705, 9-7096, and 2000-40199). There are known devices and methods for informing (Japanese Patent No. 2766684, Japanese Patent No. 2763685). For example, in Japanese Patent Application Laid-Open No. 2000-40199 (emergency vehicle notification system), an emergency information transmission unit is provided in an emergency vehicle to transmit emergency information, and an emergency information reception unit is provided in a general vehicle to receive and receive emergency information. It discloses a mechanism for outputting emergency information by voice from the emergency information obtained.

[0003]

However, when a vehicle-mounted telephone device is mounted and a call is made via a vehicle-mounted sound reproducing device, it is often engrossed in talking and emergency information cannot reach the driver's ear. And may not notice the approach of an emergency vehicle. Also, when an emergency vehicle is approached during a call, the details of the call may be overlooked when the evacuation action is taken suddenly, or conversely, the attention may be distracted due to the attention of the call and the evacuation action may be delayed, causing an accident. It may be. The present invention has been made in view of the above points,
When an emergency vehicle approaches during a call, the vehicle-mounted telephone device can send and receive necessary information and interrupt the call without giving the caller unpleasant feeling when the driver shifts to the evacuation behavior. The purpose is to provide.

[0004]

In order to solve the above-mentioned problems, an on-vehicle telephone device according to the present invention comprises a vehicle running state detecting means for determining whether or not a vehicle is running and a radio wave or sound emitted from an emergency vehicle. Emergency vehicle warning signal detecting means for
Speech level detection means for monitoring the level of the transmission / reception signal of the own device, and the presence or absence of the transmission / reception signal and the signal level to determine whether or not the apparatus is in a communication state. Call state monitoring means for identifying a message, a message storage means for storing a plurality of messages, and, when a radio wave or sound emitted by an emergency vehicle is detected while the vehicle is in a talking state while the vehicle is running, the message storage means 1st message output means for outputting the 1st message in the car and outputting the 2nd message to the other terminal, and when a radio wave or sound emitted from the emergency vehicle is detected while the vehicle is running and in a receiving state, Second message output means for outputting the second message in the message storage means to the other terminal; and, if the call state continues after the output of the second message, the contents of the call are And call content storage means for 憶, second
Means for disconnecting the communication line when the communication state ends after the message is output.

According to the present invention, the vehicle-mounted telephone device is provided with a silent part detecting means for detecting a silent part of a transmission / reception signal, and when a radio wave or a sound emitted from an emergency vehicle is detected during a talking state while the vehicle is running. After detecting the silent part of the transmission / reception signal, it is preferable to output the second message to the partner terminal. In the present invention, it is preferable that the vehicle-mounted telephone device outputs the third message in the message storage means to the inside of the vehicle before disconnecting the communication line. It is preferable that the vehicle running state detecting means determines whether or not the vehicle is running based on the operation state of a side brake provided on the vehicle.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a vehicle-mounted telephone device according to the present invention will be described in detail with reference to FIGS. Here, FIG. 1 is a functional block diagram showing an on-vehicle telephone device as an embodiment of the present invention, and FIG. 2 is a flowchart for explaining the embodiment of the present invention. Referring to FIG. 1, there is shown a functional block diagram showing an embodiment of a vehicle-mounted telephone device according to the present invention. The in-vehicle telephone device according to the present embodiment has a sound control unit 1 in the in-vehicle sound device 120.
The audio signal from the microphone 1210 is processed by the microphone 21, and the audio signal is output from the speaker 1220.
Then, the volume from the speaker 1220 is adjusted by the sound operation unit 123. Emergency vehicle warning signal detection means 130
Detects an alarm by radio waves or sound transmitted from an emergency vehicle. The call state monitoring means 140 has a call level detection unit 143, which detects the transmission and reception signal levels of the vehicle-mounted telephone device, and determines that the call is in progress when the signal level of a predetermined value or more continues for a predetermined time. Judgment is made, and "whether it is transmitting or not" is monitored. The call status monitoring means 140 has a transmission / reception signal processing unit 145 and a communication control unit 147 in addition to the call level detection unit 143, and processes transmission / reception signals and performs communication control.

[0007] The emergency message storage means 150 stores in advance a plurality of messages which warn the caller when the emergency vehicle warning signal detection means 130 detects the approach of an emergency vehicle. These messages may be fixed messages stored in the production stage in advance, or may be voices of the user recorded from the microphone 1210.

The vehicle running state detecting means 160 detects whether the vehicle is stopped or running. Vehicle running state detecting means 160
May be any of the following three. 1) A device that determines whether or not the vehicle is running based on the operation state of a side brake provided on the vehicle. For example, "stopping" when the brake is applied, "running" when not applied. 2) A device that determines whether or not the vehicle is traveling in conjunction with the speed displayed on the speedometer. For example, "stopping" when the speed is 0 km / h, and "running" otherwise. 3) having a GPS receiver for receiving a positioning signal from a GPS satellite, performing GPS positioning based on the positioning signal,
The moving speed is calculated based on the positioning result. And
When the moving speed is equal to or higher than a predetermined value (for example, when the speed is other than 0 km / h), it is determined that the vehicle is traveling, and when the moving speed is less than the predetermined value (for example, when the speed is 0 km / h), it is determined that the vehicle is stopping (slowing). .

The call contents storage means 170 stores the contents of the call under certain conditions so as to store the call contents.
Controlled by 0. An emergency vehicle warning signal detecting means 130 transmits an alarm (radio wave or sound) transmitted from the emergency vehicle during a call.
Is detected, and when the approach of an emergency vehicle is determined, the vehicle-mounted telephone communication control means 8 performs the following control.

[0010] 1. When the call state monitoring means 140 detects the transmission state The first message (for example, a warning sound) stored in the emergency message storage means 150 is emitted from the speaker 1220 into the vehicle to notify the driver of the approach of the emergency vehicle. Inform.
Thereafter, when the call state monitoring means 140 detects the interruption of the transmission, it is determined that the call has been interrupted, and the second message prepared in advance in the emergency message storage means 150 ("the call is temporarily interrupted due to the approaching emergency vehicle"). ,I'll contact you later"
Etc.) to the partner terminal. After the message is transmitted, if the call state monitoring means 140 further detects a call from the other party, the received call contents are stored in the call content storage means 170.
Is controlled so as to be recorded. When the call status monitoring means 140 detects the interruption of the reception, the emergency message storage means 15
From the 0th message to the third message (message to end the communication) are transmitted to the communication partner, and the communication is ended. If an on-hook signal is detected following the interruption of the call, the communication line is disconnected without sending a third message.

2. When the call state monitoring means 140 detects the reception state The call state monitoring means 140 keeps monitoring the call state repeatedly until a break of the received reception signal is detected. If it is detected, it is determined that the call has been interrupted, and a second message prepared in advance in the emergency message storage means 150 (eg, "Call is interrupted while an emergency vehicle is approaching and will be contacted later", etc.) To the local terminal. After sending the message, if there is a message from the other party, the message is stored in the call content storage means 170. When the call state monitoring means 140 confirms the end of the message of the other party, the communication line is disconnected.

Referring to FIG. 2, an operation flowchart of the vehicle-mounted telephone device of FIG. 1 will be described. In process 203, the vehicle traveling state detecting means 160 determines whether or not the vehicle on which the vehicle-mounted telephone device is installed is traveling. If the vehicle is not running, the monitoring is continued, and if it is determined that the vehicle is running, the emergency vehicle warning signal detecting means 130
Monitor the reception of an alarm or radio wave issued from the emergency vehicle (205). In the process 205, when these alarms and radio waves are not confirmed, the monitoring by the emergency vehicle alarm signal detecting means 130 is continued. When these alarms and radio waves are confirmed, the state of the telephone line is confirmed by the telephone state monitoring means 140 (207). In the process 207, when it is determined that the user is talking, the talking state monitoring means 140 further determines whether "transmitting" or "receiving" (209). The determination during transmission / reception is made based on the presence / absence of a transmission / reception signal and the signal level.

If it is determined in step 209 that the call is being transmitted, the first message (for example, a beep sound) prepared in the emergency message storage means 150 is emitted into the vehicle to transmit the message. Warn (driver). Thereafter, the silent part of the transmission signal is detected by the communication state monitoring means 140 (213). Then, after the detection, a second message (for example, "Temporarily interrupt the call due to approaching an emergency vehicle and contact later") is transmitted to the partner terminal via the communication line (215). If it is determined in step 209 that the telephone is being received, the call state monitoring unit 140
To detect a silent portion of the received signal (213). Then, after the detection, a second message (for example, "Temporarily interrupt the call due to approaching an emergency vehicle and contact later") is transmitted to the partner terminal via the communication line (215).

The call state monitoring means 140 checks whether the communication line is disconnected (on-hook) (217).
If the disconnection of the telephone line is confirmed, the telephone line O
FF (on-hook) (227). If the call line disconnection is not confirmed, it is confirmed whether there is a reception signal from the terminal on the other end (219). If the result of the processing 219 is not confirmed, the telephone line is turned off (on-hook) (2
27). As a result of the process 219, if a reception signal from the partner terminal is detected, a reception message corresponding to the reception signal is recorded in the call content storage means 170. Thereafter, the processes 221 to 225 are repeated until a silent portion of the reception signal is detected, and when the silent portion is detected, the telephone line is turned off (on-hook) (227).

[0015]

As described above in detail, according to the present invention, when an emergency vehicle approaches during a call, the driver does not feel uncomfortable when the driver shifts to the evacuation behavior. In addition, it is possible to provide a vehicle-mounted telephone device capable of transmitting and receiving necessary information and interrupting a call.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an embodiment of a vehicle-mounted telephone device of the present invention.

FIG. 2 is a flowchart illustrating an embodiment of the present invention.

[Explanation of symbols]

 130 emergency vehicle alarm signal detection means 140 call state monitoring means 150 emergency message storage means 180 onboard telephone communication control means

Continued on front page F term (reference) 5C086 AA53 BA22 CA06 CB27 DA40 FA06 5H180 AA01 BB05 CC12 EE08 FF05 FF13 FF25 5K027 AA16 FF28 5K067 AA34 BB03 DD26 EE02 EE10 EE16 FF02 FF26 FF40 GG22 H01

Claims (4)

[Claims] 1. A vehicle running state detecting means for determining whether or not a vehicle is running, an emergency vehicle warning signal detecting means for detecting a radio wave or a sound emitted from an emergency vehicle, and a telephone call for monitoring the transmission / reception signal level of the own vehicle. Level detection means, and the presence or absence of the transmission / reception signal and the signal level to determine whether or not a call is in progress.
Call state monitoring means for identifying a reception state; message storage means for storing a plurality of messages; message storage when a radio wave or sound emitted by the emergency vehicle is detected while the vehicle is running and in a transmission state. First message output means for outputting a first message in the vehicle to the inside of the vehicle and outputting a second message to the other terminal; and radio waves or sounds emitted by the emergency vehicle when the vehicle is running and in a receiving state. A second message output unit that outputs a second message stored in the message storage unit to the other party terminal when the message is detected; A communication content storing means for storing; and a means for disconnecting the communication line when the communication state ends after the output of the second message. Mounting for telephone equipment. 2. The in-vehicle telephone device according to claim 1, further comprising: a silent part detecting means for detecting a silent part of a transmission / reception signal, wherein the emergency vehicle emits a radio wave or a sound when the vehicle is in a talking state. When the voice message is detected, the second message is output to the partner terminal after detecting a silent portion of the transmission / reception signal. 3. The in-vehicle telephone device according to claim 1, wherein a third message stored in the message storage unit is output to a vehicle before disconnecting the communication line. In-vehicle telephone device. 4. The vehicle-mounted telephone device according to claim 1, wherein said vehicle running state detecting means determines whether or not the vehicle is running based on an operation state of a side brake provided on said vehicle. A vehicle-mounted telephone device characterized in that it is determined whether or not the vehicle-mounted telephone device is in use.